And so the guitar-selling "industry" continues to work its way downward, pushing hard for every robotic, mass-manufacturing move possible and deflecting from every issue of good craftsmanship and quality. Sure, neck-joint finish cracking is more and more common. Poorer finish materials, thick finish, and less stable joints lead to cracking. While it's rarely a fatal flaw, it's totally an indicator of flex where, ideally, we don't want flex. Is it good enough, and becoming standard? Well, no, it's not good enough, but yes, crappier build quality is making it common. Check out really old strats and teles and you don't find that kind of cracking.